I’d say Tren Ace when doing MWF shots. The heartburn was awful to the point where I considered stopping it lol. Then I read a post by someone somewhere saying that they started doing M-F shots starting at 25mg day and they had their heartburn drop drastically. So I tried it and damn if it didn’t work wonders. And that lead me down another path to do a Tren Ace only mini cycle for 6 or 7 weeks. Had good results felt good and blood work came back good too. This was circa 14-15.